21102211210222 has 8 divisors (see below), whose sum is σ = 31776481472976. Its totient is φ = 10510050719232.

The previous prime is 21102211210217. The next prime is 21102211210393. The reversal of 21102211210222 is 22201211220112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21102211210222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20527442298 + ... + 20527443325.

It is an arithmetic number, because the mean of its divisors is an integer number (3972060184122).

Almost surely, 2^{21102211210222} is an apocalyptic number.

21102211210222 is a deficient number, since it is larger than the sum of its proper divisors (10674270262754).

21102211210222 is a wasteful number, since it uses less digits than its factorization.

21102211210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41054885882.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21102211210222 its reverse (22201211220112), we get a palindrome (43303422430334).

The spelling of 21102211210222 in words is "twenty-one trillion, one hundred two billion, two hundred eleven million, two hundred ten thousand, two hundred twenty-two".